Plug valve and gas appliance with same

Abstract

The utility model discloses a plug valve and a gas appliance with the plug valve. The plug valve comprises a valve body, a valve element and a knob rod. The knob rod and the valve core can respectively rotate 270 degrees around a shaft, and the valve core and the knob rod are in transmission connection and synchronously rotate; a first cavity is formed in the middle of the valve element, and an air inlet communicated with the first cavity is formed in the bottom of the valve element; a second cavity used for rotation of the valve element is formed in the valve body, and the inner wall of the second cavity is tightly attached to the outer wall of the valve element. A first flow limiting hole, a first small hole and a first large hole which are communicated with the first cavity are sequentially formed in the side face of the valve element at the position of a first preset height in the circumferential direction of the side face every 90 degrees. Or a first flow limiting hole, a first small hole and a first large hole which are communicated with the first cavity are sequentially formed in the side face of the valve element at the position of the first preset height in the circumferential direction of the side face at intervals of 90 degrees, 210 degrees and 270 degrees; the hole diameters of the first small hole, the first flow limiting hole and the first large hole are sequentially increased. According to the utility model, a larger fire power gear for realizing stir-frying fire is added.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas appliance technical field especially relates to a cock valve and have its gas appliance. BACKGROUND

[0002] The gas valve is the core component of the household gas stove, mainly plays the functions of sealing, adjusting the gas firepower and igniting, and the quality of the gas valve determines the quality of the stove. The cock valve refers to the cock type gas valve often used in civil gas equipment, which is used for manually operating to control the switching supply of the gas source, and the fire adjusting is realized by rotating the gear controller. The existing gas button usually has two gears: the large fire and the small fire, which are realized by rotating the knob counterclockwise to 90 degrees and 180 degrees respectively. However, according to the user habits in China, it is urgent to have more gears to realize the large firepower for stir-frying. SUMMARY

[0003] The utility model solves the technical problem that the utility model provides a cock valve and have its gas appliance, increase the big hole for providing larger gas flow, realize the larger firepower of the stir-frying fire, and meet the needs of some use scenes.

[0004] In order to solve the above technical problems, the utility model discloses a cock valve, which comprises a valve body, a valve core and a knob lever.

[0005] The valve core is provided with a first cavity in the middle part, and the bottom part is provided with an air inlet communicated with the first cavity; the valve body is internally provided with a second cavity for rotating the valve core, and the inner wall of the second cavity is tightly attached to the outer wall of the valve core.

[0006] The side surface of the valve core is provided with a first flow limiting hole, a first small hole and a first big hole communicated with the first cavity at the position of the first preset height along the circumferential direction of the side surface every 90 degrees, or the side surface of the valve core is provided with a first flow limiting hole, a first small hole and a first big hole communicated with the first cavity at the position of the first preset height along the circumferential direction of the side surface every 90 degrees, 210 degrees and 270 degrees respectively.

[0007] The hole diameters of the first small hole, the first flow limiting hole and the first big hole increase in turn.

[0008] As an optional embodiment, when the air inlet inputs natural gas, the hole diameter of the first flow limiting hole is set as a first hole diameter; when the air inlet inputs liquefied gas, the hole diameter of the first flow limiting hole is set as a second hole diameter; the first hole diameter is larger than the second hole diameter.

[0009] As a further alternative embodiment, the bottom of the second cavity is in communication with the air inlet of the bottom of the first cavity; the valve body outer wall is provided with a gas supply port, and the valve body inner wall is provided with a channel to communicate the gas supply port with the bottom of the second cavity.

[0010] The utility model discloses a second aspect discloses another kind of plug valve, including as the valve body of the utility model first aspect, valve core and knob lever;The side of the valve core is in the position of second preset height every interval 90 degrees along the circumferential direction of this side in turn and be provided with the second flow restrictor, second orifice and second big hole of the communication of first cavity;

[0011] The aperture of the second orifice, the second flow restrictor and the second big hole increases in turn;The second preset height is not equal to the first preset height.

[0012] In an alternative embodiment, the side of the valve core is in the position of second preset height every interval 90 degrees, 210 degrees, 270 degrees along the circumferential direction of this side in turn and be provided with the second flow restrictor, second orifice and second big hole of the communication of first cavity;

[0013] The aperture of the second orifice, the second flow restrictor and the second big hole increases in turn;The second preset height is not equal to the first preset height.

[0014] The utility model discloses a third aspect discloses a gas appliance, including first air pipe, first gas nozzle and as the plug valve of the utility model first aspect or the utility model second aspect;

[0015] The inlet of the first air pipe is communicated to the second cavity, and the communication point is located at the first preset height, and the outlet of the first air pipe is installed the first gas nozzle.

[0016] The utility model discloses a fourth aspect discloses a gas appliance, including first air pipe, first gas nozzle, second air pipe, second gas nozzle and as the plug valve of the utility model second aspect;

[0017] The inlet of the first air pipe is communicated to the second cavity, and the communication point is located at the first preset height, and the outlet of the first air pipe is installed the first gas nozzle;

[0018] The inlet of the second air pipe is communicated to the second cavity, and the communication point is located at the second preset height, and the outlet of the second air pipe is installed the second gas nozzle.

[0019] Compared with the prior art, the utility model example has the following beneficial effects:

[0020] The utility model embodiment through being equipped with the flow control hole of different aperture in the same height on the valve core according to the circumferential direction, after setting the communication point with the valve core in this height in the external pipeline, only need to drive the valve core rotation through rotating the knob lever, can quick switching three kinds of gear gas flow, increased for providing greater gas flow big hole, realize the greater firepower of the explosive stir -fry fire, set up in the position of 270 degrees, both protect user safety, also can satisfy the demand of part use scene. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to make the technical scheme in the utility model embodiment clearer, the following will briefly introduce the drawings needed to be used in the embodiment description, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0022] Figure 1 It is a structure schematic diagram of the plug valve disclosed by the utility model embodiment,

[0023] Figure 2 It is another structure schematic diagram of the plug valve disclosed by the utility model embodiment,

[0024] Figure 3 It is a structure schematic diagram of the gas appliance disclosed by the utility model embodiment,

[0025] Figure 4 It is another structure schematic diagram of the gas appliance disclosed by the utility model embodiment. DETAILED DESCRIPTION

[0026] In order to make the technical scheme in the utility model embodiment clearer, the following will briefly introduce the drawings needed to be used in the embodiment description, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0027] Embodiment one

[0028] Referring to Figures 1-4 The utility model embodiment discloses a kind of plug valves, including valve body 1, valve core 2, knob lever 3;The knob lever 3 and the valve core 2 can be rotated 270 degrees around shaft respectively, the valve core 2 is drivingly connected with the knob lever 3 and both synchronous rotation;

[0029] The valve core 2 is provided with a first cavity in the middle, and the bottom is provided with an air inlet 24 communicating with the first cavity; the valve body 1 is internally provided with a second cavity for rotating the valve core 2, and the inner wall of the second cavity is tightly attached to the outer wall of the valve core 2;

[0030] The side surface of the valve core 2 is provided with a first flow limiting hole 21, a first small hole 22 and a first large hole 23 in the first preset height position along the circumferential direction of the side surface, which are communicated with the first cavity, or the side surface of the valve core 2 is provided with a first flow limiting hole 21, a first small hole 22 and a first large hole 23 in the first preset height position along the circumferential direction of the side surface, which are communicated with the first cavity, and the first flow limiting hole 21, the first small hole 22 and the first large hole 23 are arranged at intervals of 90 degrees, 210 degrees and 270 degrees, respectively.

[0031] The hole diameters of the first small hole 22, the first flow limiting hole 21 and the first large hole 23 increase in sequence.

[0032] In the embodiment, the first flow limiting hole 21 is used for large fire flow limiting (strong fire blocking, which can also be small fire flow limiting), the first small hole 22 is used for minimum fire (minimum heat load state), the first large hole 23 has the maximum flow of gas and is used for explosive frying fire (maximum heat load state); the first flow limiting hole 21 and the first large hole 23 are separated by 180 degrees and are not provided with holes, which is the initial non-ventilation state. The knob rod 3 is limited to rotate in the direction of sequentially passing through the first flow limiting hole 21, the first small hole 22 and the first large hole 23 from the initial position, and the gas flow is sequentially switched from large fire to small fire and then to explosive frying fire.

[0033] In the embodiment, different flow control holes with different hole diameters are arranged on the valve core 2 at the same height in the circumferential direction, and the communication points of the valve core 2 at the height are arranged on the external pipeline. Only by rotating the knob rod 3 to drive the valve core 2 to rotate, the gas flow of three gears can be quickly switched. The large hole for providing larger gas flow is increased, the larger power of explosive frying fire is realized, and the large hole is arranged at the position of 270 degrees, which not only protects the safety of users, but also meets the needs of part of use scenes.

[0034] In an optional embodiment, when the air inlet 24 inputs natural gas, the hole diameter of the first flow limiting hole 21 is set as a first hole diameter, for example, 0.55-0.70 mm; when the air inlet 24 inputs liquefied gas, the hole diameter of the first flow limiting hole 21 is set as a second hole diameter; the first hole diameter is larger than the second hole diameter, for example, 0.40-0.50 mm. In addition, the hole diameter of the first large hole 23 is greater than or equal to 3 mm.

[0035] In another optional embodiment, the bottom of the second cavity is communicated with the air inlet 24 of the bottom of the first cavity; the valve body 1 is provided with a gas supply port 11 on the outer wall, and the valve body 1 is provided with a channel on the inner wall to communicate the gas supply port with the bottom of the second cavity.

[0036] In yet another optional embodiment, the knob lever 3 peripheral valve core ring designs a lever limiting structure 8, which ensures that the knob is pressed to adjust initially at 0-90°, and when reaching 90°, the limit is encountered, and when reaching 90-180° or 90-210°, the limit is encountered again, and the knob must be pressed again to continue to rotate, and cannot be adjusted from 0-270° at once, which to some extent guarantees the safety of the user.

[0037] Embodiment two

[0038] The utility model discloses an embodiment of a cock valve, comprising all features of the cock valve in embodiment one, and the difference from embodiment one is that:

[0039] The side surface of the valve core 2 is sequentially provided with a second flow limiting hole (not shown in the drawing), a second small hole (not shown in the drawing) and a second large hole 25 in communication with the first cavity every 90 degrees along the circumferential direction of the side surface at the position of the second preset height;

[0040] The aperture of the second small hole, the second flow limiting hole and the second large hole 25 increases in turn; and the second preset height is not equal to the first preset height.

[0041] In an optional embodiment, the side surface of the valve core 2 is sequentially provided with a second flow limiting hole (not shown in the drawing), a second small hole (not shown in the drawing) and a second large hole 25 in communication with the first cavity every 90 degrees, 210 degrees and 270 degrees along the circumferential direction of the side surface at the position of the second preset height;

[0042] The aperture of the second small hole, the second flow limiting hole and the second large hole 25 increases in turn; and the second preset height is not equal to the first preset height.

[0043] Embodiment three

[0044] The utility model discloses an embodiment of a gas firepower adjusting device, comprising a first air inlet pipe 4, a first gas nozzle 5 and a cock valve as described in embodiment one;

[0045] The inlet of the first air inlet pipe 4 is communicated to the second cavity, and the communication point is located at the first preset height; and the outlet of the first air inlet pipe 4 is installed with the first gas nozzle 5.

[0046] Embodiment four

[0047] The utility model discloses an embodiment of a gas firepower adjusting device, comprising a first air inlet pipe 4, a first gas nozzle 5, a second air inlet pipe 6, a second gas nozzle 7 and a cock valve as described in embodiment two;

[0048] The inlet of the first air inlet pipe 4 is communicated to the second cavity, and the communication point is located at the first preset height, and the outlet of the first air inlet pipe 4 is installed with the first gas nozzle 5.

[0049] The inlet of the second air inlet pipe 6 is communicated to the second cavity, and the communication point is located at the second preset height, and the outlet of the second air inlet pipe 6 is installed with the second gas nozzle 7.

[0050] In the embodiment, the first air inlet pipe is a main fire air inlet pipe (or a small fire air inlet pipe), and the second air inlet pipe is a small fire air inlet pipe (or a main fire air inlet pipe). Figure 4 In the embodiment, the first air inlet pipe 4 is a small fire air inlet pipe, and the second air inlet pipe 6 is a main fire air inlet pipe.

[0051] The content disclosed by the embodiment of the utility model only is the preferred embodiment of the utility model, and is used for explaining the technical scheme of the utility model, and is not limited to it; although the utility model is explained in detail by referring to the foregoing embodiment, those skilled in the art should understand that the technical scheme recorded in the foregoing embodiment can be modified, or some technical features can be replaced equivalently; and the modification or replacement does not make the essence of the corresponding technical scheme deviate from the spirit and scope of the technical scheme of the embodiment of the utility model.

Claims

1. A stopcock valve characterised in that, It comprises a valve body, a valve core and a knob rod, the knob rod and the valve core can rotate 270 degrees around the shaft, the valve core is in transmission connection with the knob rod and both of them rotate synchronously; The middle part of the valve core is provided with a first cavity, and the bottom part is provided with an air inlet communicating with the first cavity; the inside of the valve body is provided with a second cavity for the rotation of the valve core, and the inner wall of the second cavity is close to the outer wall of the valve core; The side surface of the valve core is provided with a first flow limiting hole, a first small hole and a first large hole in the first preset height position along the circumferential direction of the side surface every 90 degrees, or the side surface of the valve core is provided with a first flow limiting hole, a first small hole and a first large hole in the first preset height position along the circumferential direction of the side surface every 90 degrees, 210 degrees and 270 degrees respectively. The hole diameters of the first small hole, the first flow limiting hole and the first large hole increase in turn.

2. The stopcock valve of claim 1, wherein When the air inlet inputs natural gas, the hole diameter of the first flow limiting hole is set as a first hole diameter; when the air inlet inputs liquefied gas, the hole diameter of the first flow limiting hole is set as a second hole diameter; the first hole diameter is larger than the second hole diameter.

3. The stopcock valve of claim 1, wherein The bottom part of the second cavity is communicated with the air inlet of the bottom part of the first cavity; the outer wall of the valve body is provided with a gas supply port, and the inner wall of the valve body is provided with a channel to communicate the gas supply port with the bottom part of the second cavity.

4. A stopcock valve comprising a valve body, a valve plug and a knob stem as claimed in any one of claims 1 to 3, characterised in that, The side surface of the valve core is provided with a second flow limiting hole, a second small hole and a second large hole in the second preset height position along the circumferential direction of the side surface every 90 degrees. The hole diameters of the second small hole, the second flow limiting hole and the second large hole increase in turn; the second preset height is not equal to the first preset height.

5. The stopcock valve of claim 4, wherein, The side surface of the valve core is provided with a second flow limiting hole, a second small hole and a second large hole in the second preset height position along the circumferential direction of the side surface every 90 degrees, 210 degrees and 270 degrees respectively.

6. A gas appliance characterised in that, It comprises a first air inlet pipe, a first gas nozzle and the cock valve of any one of claims 1-5. The inlet of the first air inlet pipe is communicated to the second cavity, and the communication point is located at the first preset height, and the outlet of the first air inlet pipe is installed with the first gas nozzle.

7. A gas appliance characterised in that It comprises a first air inlet pipe, a first gas nozzle, a second air inlet pipe, a second gas nozzle and the cock valve of claim 4 or 5. The inlet of the first air inlet pipe is communicated to the second cavity, and the communication point is located at the first preset height, and the outlet of the first air inlet pipe is installed with the first gas nozzle. The inlet of the second air inlet pipe is communicated to the second cavity, and the communication point is located at the second preset height, and the outlet of the second air inlet pipe is installed with the second gas nozzle.

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